Safety starting device.



D. P. DAVIESJ SAFETY STARTING DEVICE. APPLICATION FILED APR. I9. 1915.

Patented Nov. 30, 1915-.

2 SHEETS-SHEET I.

' D. P. DAVIES.

SAFETY STARTING DEVICE.

APPLICATION HLED APR-19. I915.

Patented Nov. 30, 1915.

2 SHEETS-SHEET 2.

,matically released, but should the DAVID r. DAvIEs, or RACIN'E, WISCONSIN, ASSIGNOR 'ro J. I. case rrannsn ne MACHINE coMrANY or RAGINE, wIsooNsm, A OORFORATION.

'sArn'rY STARTING DEVICE.

To all whom it may concern:

Be it known that I, DAvin I. Davies, a citizen of the United States, residing at Racine, in the countyof Racine and State of Wisconsin, have invented certain new and useful Improvements in Safety Starting Devices, of which the following'is a specification.

In operating high power gas tractors the engine is commonly started by manually turning the fly-wheel or by means of a crank connected with the engine. /Vhen employing a crank it is generally so arranged that when the enginestarts the crank is autoengine reverse its motion such crank does not become released but reverses suddenly and forcibly by the action of the engine, in many instances resulting in serious injury to the operators.

The object of my invention is toprovide a safety starting device for gas engines which will eliminate the possibility of injury to an operator under the conditions stated, and which can be conveniently and readily manipulated.

In the accompanying drawings, which form a part hereof, Figure 1 is a side elevation of a gas tractor showing my inventherewith; Fig. 3, a side elevation of the same and Fi 4 is a vertical section thereof.

In said drawings the portions marked 5 indicate an engine of any appropriate construction, upon the crank-shaft, 6, of which y I fixedly mount a ratchet-wheel 7. At one 7 'side of said ratchet wheel and loosely mount-l ed on shaft 6 is a yoke, 8, which is free to 7 turn on said shaft 6 and which terminatesin a shank, 9. In said shank 9 I provide a dog, 10, which is normally held therein by a spring, 11, said dog being provided with a pin, 12, for a purpose which will hereinafter appear. Upon the engine 5 I provide a trip, 13, and a latch, 15, each ofwhich cooperate with the starter in a manner to be stated. 7

In operating my improved starter I pref erably employ a removable handle comprising a suitable bar or pipe 16, which is insorted in the shank 9 with sumcient force to project dog 10 into engagement with ratchet-wheel 7. Yoke 8 by means of said handle is turned upwardly the distance de- Specification of Letters Patent.

7 7 Patented Nov. 3d, 1915. Application filed April 19; 1915. seriairo. 22,326.

sired, and then, as dog N engages the ratchet at such point, the movement of the yoke is slowly reversed, said yoke at the same time turning said ratchet-wheel and crank-shaft 6 in the same direction until the engme 18 near the end of its compression stroke, when a quick downward pull isgiven I to throw the same past compression, or,in

engine reverse or kick back when yoke 8 is .pulled downwardly, and the dog 10 be St/111 engaged, said yoke will also be carried 1n the same direction by the ratchet until pin 12 contacts with trip 13, which pin, when 1t strikes the stop, 14, of said trip,

will throw dog 10 out of engagement with said ratchet-wheel, so that the yoke will cease revolvlngand be under complete control of the operator, leaving the engine free to spin in the reverse direction from that of starting. After the engine has been started, or when it is not in operation, handle 16 is withdrawn, and said yoke, with the parts associated therewith, maybe fixedly ield from movement by turning it to the position indicated by dotted lines in Fig. 2, when pin, 17, in shank 9 will become engaged with latch 15, thus securing the starter in fixed positionuntil desired for further use, as i will be readily understood.

I have illustrated my irn] roved starter in connection with a large traction engine, as it is particularly adapted for use with the same by I reason of the height at which the engine is located, which otherwise would be inconvenient for cranking in the ordinary way, but I desire to be understood that it may be applied to engines for other purposes.

I claim as my invention:

1'. A starter for engines, comprising a ratchet-wheel, a yoke associated therewith,

a dog associated with said yoke and adapted to engage said ratchet-wheel, removable means adapted to be inserted in said yoke to contact with said dog and engage'the same with said ratchet,,and means for automatically disengaging said dog therefrom.

2. A starter for engines, comprising a ratchet-wheel, a revoluble yoke associated therewith, a shank associated with said yoke, a spring-controlled dog in said shank, re-

movable means adapted tobe inserted in said shank to engage said dog With said ratchet-Wheel, and means for disengaging said dog therefrom.

3. In a starter for engines, a revoluble member adapted to be mounted upon an engine-shaft, a ratchet Wheel associated there-,

With, means associated With said member for engaging said ratchet whereby said member and ratchet may be revolved together, means associated With said member for disengaging it from said ratchet, and means for fixedly securing said member in position when so disengaged.

In testimony whereof I affix my signature 1 Copies of this batent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. G. 

